package cn.tedu.bbq002.controller;

import cn.tedu.bbq002.mapper.BannerMapper;
import cn.tedu.bbq002.vo.Banner;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.UUID;

@RestController
public class BannerController {
    @Autowired(required = false)
    BannerMapper mapper;

    @RequestMapping("/banner/select")
    public List<Banner> select(){
        return mapper.select();
    }
    @RequestMapping("/banner/delete")
    public void delete(int id){
        mapper.delete(id);
    }
    @RequestMapping("/banner/insert")
    public void insert(MultipartFile picFile) throws IOException {
        String fileName = picFile.getOriginalFilename();
        String suffix = fileName.substring(fileName.lastIndexOf("."));
        fileName = UUID.randomUUID()+suffix;
        String dirPath = "d:/upload/";
        File dirFile = new File(dirPath);
        if (!dirFile.exists()){
            dirFile.mkdirs();
        }
        String filePath = dirPath+fileName;//得到完整文件路径
        picFile.transferTo(new File(filePath));//保存文件到指定的路径
        //把文件路径封装到Banner对象中
        Banner banner = new Banner();
        banner.setUrl("/"+fileName);
        mapper.insert(banner);//保存到数据库里面
    }
}